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<p>Muskmelons are high-water-content, hydrating, vitamin-rich, low-calorie fruits with sweet musky aromas. However, their short shelf-life (10–15 days) leads to significant post-harvest loss. This study explored the potential of mangalore melon (<i>Cucumis melo</i> ssp. <i>agrestis</i>), a culinary melon known for its exceptional shelf life (up to one year), to improve muskmelon storability through infraspecific hybridization. Nineteen hybrids were developed by crossing 11 mangalore melon genotypes with two muskmelon varieties. The highest fruit set percentages were observed for AS × SS-17, PM × MS-5, and PM × MS-6 (72%). Medium-to-high compatibility indices and seed germination percentages indicate reproductive compatibility between the botanical groups. Hybridity was confirmed using SSR markers CMCT505 and ECM52, with all hybrids exhibiting heterozygous allele profiles. Increased vine length and primary branches were observed in the hybrids compared to the muskmelon parents. The sex ratio and flowering time exhibited significant variation, with infraspecific hybrids demonstrating earlier flowering and fruit harvesting. The number of fruits per vine, average fruit weight, and yield per vine showed positive heterosis in many hybrids. Shelf life was significantly improved in hybrids with AS × SS17 and PM × MS-38, demonstrating a remarkable shelf-life extension of up to 185 days. However, total soluble solids (TSS) were generally lower in the hybrids than in the muskmelon parents. The fruit shape and peel color were similar to those of mangalore melons, which may be improved by repeated backcrossing with muskmelons. This study highlights the potential of infra-specific hybridization to enhance muskmelon characteristics by introducing traits from mangalore melon.</p>

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Infraspecific hybridisation of muskmelon (Cucumis melo ssp. melo) with mangalore melon (C. melo ssp agrestis var. acidulus) for extended shelf life and improved yield

  • 期刊论文

  • 发表日期：

    2025年6月5日

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  • K. C. Venugopal,
  • Ratnakar Manjunath Shet,
  • Raghavendra Gunnaiah,
  • Rekha B. Chittapur,
  • Virupakshi Hiremata,
  • Shashikanth Evoor,
  • Sarvamangala Cholin,
  • Guranna Prabhuling

摘要

Muskmelons are high-water-content, hydrating, vitamin-rich, low-calorie fruits with sweet musky aromas. However, their short shelf-life (10–15 days) leads to significant post-harvest loss. This study explored the potential of mangalore melon (Cucumis melo ssp. agrestis), a culinary melon known for its exceptional shelf life (up to one year), to improve muskmelon storability through infraspecific hybridization. Nineteen hybrids were developed by crossing 11 mangalore melon genotypes with two muskmelon varieties. The highest fruit set percentages were observed for AS × SS-17, PM × MS-5, and PM × MS-6 (72%). Medium-to-high compatibility indices and seed germination percentages indicate reproductive compatibility between the botanical groups. Hybridity was confirmed using SSR markers CMCT505 and ECM52, with all hybrids exhibiting heterozygous allele profiles. Increased vine length and primary branches were observed in the hybrids compared to the muskmelon parents. The sex ratio and flowering time exhibited significant variation, with infraspecific hybrids demonstrating earlier flowering and fruit harvesting. The number of fruits per vine, average fruit weight, and yield per vine showed positive heterosis in many hybrids. Shelf life was significantly improved in hybrids with AS × SS17 and PM × MS-38, demonstrating a remarkable shelf-life extension of up to 185 days. However, total soluble solids (TSS) were generally lower in the hybrids than in the muskmelon parents. The fruit shape and peel color were similar to those of mangalore melons, which may be improved by repeated backcrossing with muskmelons. This study highlights the potential of infra-specific hybridization to enhance muskmelon characteristics by introducing traits from mangalore melon.